From: Kumar Kartikeya Dwivedi <memxor@gmail.com>
To: bpf@vger.kernel.org
Cc: "Alexei Starovoitov" <ast@kernel.org>,
"Andrii Nakryiko" <andrii@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Toke Høiland-Jørgensen" <toke@redhat.com>,
"Jesper Dangaard Brouer" <brouer@redhat.com>
Subject: [PATCH bpf-next v4 11/13] libbpf: Add kptr type tag macros to bpf_helpers.h
Date: Sat, 9 Apr 2022 15:03:01 +0530 [thread overview]
Message-ID: <20220409093303.499196-12-memxor@gmail.com> (raw)
In-Reply-To: <20220409093303.499196-1-memxor@gmail.com>
Include convenience definitions:
__kptr: Unreferenced BTF ID pointer
__kptr_ref: Referenced BTF ID pointer
Users can use them to tag the pointer type meant to be used with the new
support directly in the map value definition.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
tools/lib/bpf/bpf_helpers.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/lib/bpf/bpf_helpers.h b/tools/lib/bpf/bpf_helpers.h
index 44df982d2a5c..bbae9a057bc8 100644
--- a/tools/lib/bpf/bpf_helpers.h
+++ b/tools/lib/bpf/bpf_helpers.h
@@ -149,6 +149,8 @@ enum libbpf_tristate {
#define __kconfig __attribute__((section(".kconfig")))
#define __ksym __attribute__((section(".ksyms")))
+#define __kptr __attribute__((btf_type_tag("kptr")))
+#define __kptr_ref __attribute__((btf_type_tag("kptr_ref")))
#ifndef ___bpf_concat
#define ___bpf_concat(a, b) a ## b
--
2.35.1
next prev parent reply other threads:[~2022-04-09 9:33 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-09 9:32 [PATCH bpf-next v4 00/13] Introduce typed pointer support in BPF maps Kumar Kartikeya Dwivedi
2022-04-09 9:32 ` [PATCH bpf-next v4 01/13] bpf: Make btf_find_field more generic Kumar Kartikeya Dwivedi
2022-04-11 20:20 ` Joanne Koong
2022-04-12 19:48 ` Kumar Kartikeya Dwivedi
2022-04-09 9:32 ` [PATCH bpf-next v4 02/13] bpf: Move check_ptr_off_reg before check_map_access Kumar Kartikeya Dwivedi
2022-04-11 20:28 ` Joanne Koong
2022-04-09 9:32 ` [PATCH bpf-next v4 03/13] bpf: Allow storing unreferenced kptr in map Kumar Kartikeya Dwivedi
2022-04-12 0:32 ` Joanne Koong
2022-04-12 19:16 ` Kumar Kartikeya Dwivedi
2022-04-12 23:56 ` Joanne Koong
2022-04-13 5:50 ` Kumar Kartikeya Dwivedi
2022-04-13 5:41 ` kernel test robot
2022-04-09 9:32 ` [PATCH bpf-next v4 04/13] bpf: Tag argument to be released in bpf_func_proto Kumar Kartikeya Dwivedi
2022-04-12 18:16 ` Joanne Koong
2022-04-12 20:11 ` Kumar Kartikeya Dwivedi
2022-04-13 18:33 ` Joanne Koong
2022-04-13 18:39 ` Joanne Koong
2022-04-09 9:32 ` [PATCH bpf-next v4 05/13] bpf: Allow storing referenced kptr in map Kumar Kartikeya Dwivedi
2022-04-12 23:05 ` Joanne Koong
2022-04-13 5:36 ` Kumar Kartikeya Dwivedi
2022-04-13 5:54 ` Kumar Kartikeya Dwivedi
2022-04-09 9:32 ` [PATCH bpf-next v4 06/13] bpf: Prevent escaping of kptr loaded from maps Kumar Kartikeya Dwivedi
2022-04-09 9:32 ` [PATCH bpf-next v4 07/13] bpf: Adapt copy_map_value for multiple offset case Kumar Kartikeya Dwivedi
2022-04-09 9:32 ` [PATCH bpf-next v4 08/13] bpf: Populate pairs of btf_id and destructor kfunc in btf Kumar Kartikeya Dwivedi
2022-04-09 9:32 ` [PATCH bpf-next v4 09/13] bpf: Wire up freeing of referenced kptr Kumar Kartikeya Dwivedi
2022-04-09 9:33 ` [PATCH bpf-next v4 10/13] bpf: Teach verifier about kptr_get kfunc helpers Kumar Kartikeya Dwivedi
2022-04-09 9:33 ` Kumar Kartikeya Dwivedi [this message]
2022-04-09 9:33 ` [PATCH bpf-next v4 12/13] selftests/bpf: Add C tests for kptr Kumar Kartikeya Dwivedi
2022-04-09 9:33 ` [PATCH bpf-next v4 13/13] selftests/bpf: Add verifier " Kumar Kartikeya Dwivedi
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